On Sunday, Elton John announced that he has walking pneumonia, while performing in Auckland, New Zealand.<br />The 72-year-old British musician apologized to his fans on Twitter and Instagram, saying that he was "deeply upset and sorry" for his performance. <br />He explained "I was diagnosed with walking pneumonia earlier today, but I was determined to give you the best show humanly possible." <br />He added "I played and sang my heart out, until my voice could sing no more.
